Kirchhoff's first law i.e. $\Sigma i=0$ at a junction is based on the law of conservation of :

1. Charge

2. Energy

3. Momentum

4. Angular momentum

The figure below shows currents in a part of electric circuit. The current i is

1. 1.7 amp

2. 3.7 amp

3. 1.3 amp

4. 1 amp

The figure shows a network of currents. The magnitude of currents is shown here. The current i will be 

1. 3 A

2. 13 A

3. 23 A

4. – 3 A

The current in the arm \(CD\) of the circuit will be:
             

1. \(i_{1} + i_{2}\)

2. \(i_{2} + i_{3}\)

3. \(i_{1} + i_{3}\)

4. \(i_{1} - i_{2} + i_{3}\)

Kirchhoff’s first and second laws for electrical circuits are consequences of:

Current through the branch \(AO\) is:

       
1. \(2\) A
2. \(4\) A
3. \(1\) A
4. zero

The value of electric current i₁ in the network below is 

1  5 A

2  9 A

3  8 A

4  7 A

In the network shown, the potential at junction D is

1  $\frac{180}{11}V$

2  $\frac{11}{180}V$

3  10 V

4  5 V 

The current I in the circuit shown below is:

1. $-3<mspace\; width="1em"></mspace>\mathrm{A}$

2. 3 A

3. 13 A

4. 20 A

As the switch is closed in the circuit then current passed through it is 

1  7.5 A

2  3 A

3  4.5 A

4  Zero